Body Ecology Histamine Reducing Probiotic Powder is a blend of beneficial bacteria that support the DAO enzyme and helps to lower high levels of mast cells in the gut. The DAO enzyme in our Histamine Reducing Probiotic Powder is responsible for breaking down histamine in the intestines. Our Histamine Reducing Probiotic Powder breaks down excessive histamine and assists with histamine intolerance and low histamine. Strains: L.Rhamnosus strain is Lr-06 L.Salivarius strain is Ls-07 L.Gasseri strain is Lg-05 B.Longum strain is Bl-14 B.Bifidum strain is Bb-10 B.Lactis strain is Bla-12 Body Ecology’s Histamine Reducing Probiotic is a high-quantity blend of 6 highly potent probiotic strains, formulated to maximize health benefits and maintain a well-balanced immune system.